Genes essential to producing the developmental differences displayed by social insects evolve more rapidly than genes governing other aspects of organismal function, a new study has found.

A parasite and a virus may be teaming up in a way that increases the parasite’s ability to harm humans.

A new study finds that too much, or too little, Internet use may be linked to depression among teens.

The brain's inner network becomes increasingly more efficient as humans mature.

The enduringly popular theory that the Chicxulub crater holds the clue to the demise of the dinosaurs, along with some 65 percent of all species 65 million years ago, is challenged in a new paper published Monday.